Kohei Umezu

1.7k total citations
62 papers, 1.4k citations indexed

About

Kohei Umezu is a scholar working on Molecular Biology, Public Health, Environmental and Occupational Health and Reproductive Medicine. According to data from OpenAlex, Kohei Umezu has authored 62 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 25 papers in Molecular Biology, 12 papers in Public Health, Environmental and Occupational Health and 12 papers in Reproductive Medicine. Recurrent topics in Kohei Umezu's work include Reproductive Biology and Fertility (11 papers), Sperm and Testicular Function (11 papers) and Liver physiology and pathology (5 papers). Kohei Umezu is often cited by papers focused on Reproductive Biology and Fertility (11 papers), Sperm and Testicular Function (11 papers) and Liver physiology and pathology (5 papers). Kohei Umezu collaborates with scholars based in Japan, United States and Belgium. Kohei Umezu's co-authors include Hiroaki Nakayama, Koji Nakayama, Noboru Yamada, Kenneth E. Moore, Kazuo Takahashi, Masaru Ubasawa, Erik De Clercq, Masanori Baba, Issei Nitta and H. TANAKA and has published in prestigious journals such as Proceedings of the National Academy of Sciences, PLoS ONE and Analytical Biochemistry.

In The Last Decade

Kohei Umezu

58 papers receiving 1.4k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Kohei Umezu Japan 19 587 328 235 219 154 62 1.4k
M. Claire Bartlett Canada 35 1.2k 2.1× 554 1.7× 103 0.4× 207 0.9× 253 1.6× 50 3.0k
R. T. BORCHARDT United States 24 1.0k 1.7× 200 0.6× 183 0.8× 47 0.2× 222 1.4× 49 1.7k
Valerie Grum‐Tokars United States 16 562 1.0× 498 1.5× 184 0.8× 121 0.6× 63 0.4× 18 1.2k
Johann Leban United States 27 1.1k 1.9× 221 0.7× 316 1.3× 107 0.5× 246 1.6× 83 2.0k
John O. Hui United States 19 602 1.0× 500 1.5× 123 0.5× 483 2.2× 97 0.6× 42 1.3k
Beatrice Macchi Italy 26 551 0.9× 262 0.8× 354 1.5× 226 1.0× 182 1.2× 101 1.7k
Lionel N. Simon United States 24 1.2k 2.1× 532 1.6× 488 2.1× 63 0.3× 547 3.6× 54 2.3k
S A Chow United States 21 900 1.5× 490 1.5× 149 0.6× 506 2.3× 80 0.5× 33 1.6k
Ronald Y. Chuang United States 23 778 1.3× 274 0.8× 58 0.2× 313 1.4× 107 0.7× 81 1.9k
Catherine Bisbal France 25 887 1.5× 138 0.4× 39 0.2× 96 0.4× 198 1.3× 57 1.6k

Countries citing papers authored by Kohei Umezu

Since Specialization
Citations

This map shows the geographic impact of Kohei Umezu's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Kohei Umezu with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Kohei Umezu more than expected).

Fields of papers citing papers by Kohei Umezu

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Kohei Umezu. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Kohei Umezu. The network helps show where Kohei Umezu may publish in the future.

Co-authorship network of co-authors of Kohei Umezu

This figure shows the co-authorship network connecting the top 25 collaborators of Kohei Umezu. A scholar is included among the top collaborators of Kohei Umezu based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Kohei Umezu. Kohei Umezu is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Umezu, Kohei, Daisuke Mashiko, Masahito Ikawa, et al.. (2025). Rescue of male infertility by human PRSS55 in transgenic mice establishes a contraceptive research model. Scientific Reports. 15(1). 28657–28657.
2.
Xia, Tian, Kohei Umezu, Deirdre Scully, Shang Wang, & Irina V. Larina. (2023). In vivo volumetric depth-resolved imaging of cilia metachronal waves using dynamic optical coherence tomography. Optica. 10(11). 1439–1439. 8 indexed citations
3.
Nozawa, Kaori, Yoshitaka Fujihara, Irina V. Larina, et al.. (2022). The testis-specific E3 ubiquitin ligase RNF133 is required for fecundity in mice. BMC Biology. 20(1). 161–161. 18 indexed citations
4.
Umezu, Kohei, et al.. (2021). Caffeine induces sperm detachment from sperm head-to-head agglutination in bull. Biochemical and Biophysical Research Communications. 562. 105–111. 1 indexed citations
5.
Umezu, Kohei, Kenshiro Hara, Yuuki Hiradate, Takashi NUMABE, & Kentaro Tanemura. (2020). Stromal cell-derived factor 1 regulates in vitro sperm migration towards the cumulus-oocyte complex in cattle. PLoS ONE. 15(4). e0232536–e0232536. 9 indexed citations
6.
Umezu, Kohei, et al.. (2012). Fontan completion after Norwood with bidirectional Glenn shunt: their haemodynamics and pulmonary artery configuration. Interactive Cardiovascular and Thoracic Surgery. 15(2). 204–208. 1 indexed citations
7.
Ishii, Takehisa, Maki Sato, Masayuki Suzuki, et al.. (1995). Hepatocyte Growth Factor Stimulates Liver Regeneration and Elevates Blood Protein Level in Normal and Partially Hepatectomized Rats. The Journal of Biochemistry. 117(5). 1105–1112. 104 indexed citations
8.
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10.
Yamada, Noboru, Shigenori Kadowaki, & Kohei Umezu. (1992). Development of an animal model of late asthmatic response in guinea pigs and effects of anti-asthmatic drugs. Prostaglandins. 43(6). 507–521. 16 indexed citations
11.
Yamada, Noboru, et al.. (1992). MY-1250, a major metabolite of the anti-allergic drug repirinast, induces phosphorylation of a 78-kDa protein in rat mast cells. Biochemical Pharmacology. 44(6). 1211–1213. 164 indexed citations
12.
Baba, Masanori, Erik De Clercq, H. TANAKA, et al.. (1991). Highly potent and selective inhibition of human immunodeficiency virus type 1 by a novel series of 6-substituted acyclouridine derivatives.. Molecular Pharmacology. 39(6). 805–810. 59 indexed citations
13.
Ueno, Hiroaki, et al.. (1991). Synthesis and evaluation of antiinflammatory activities of a series of corticosteroid 17.alpha.-esters containing a functional group. Journal of Medicinal Chemistry. 34(8). 2468–2473. 32 indexed citations
14.
Nakagawa, Yuki, Takasuke Ogawa, Kohei Umezu, et al.. (1990). Characterization of suppressor cells activated by 4-acetylaminophenylacetic acid (MS-932) in delayed-type hypersensitivity. 6(3). 149–156. 6 indexed citations
15.
16.
Umezu, Kohei, et al.. (1986). Suppressive effect of tritoqualine (TRQ) on the acceleration of fibrosis in the liver.. Folia Pharmacologica Japonica. 87(3). 291–300. 2 indexed citations
17.
Umezu, Kohei, et al.. (1985). Prophylactic effect of tritoqualine (TRQ) on the CCl4-induced chronic liver injury model in rats.. Folia Pharmacologica Japonica. 85(3). 185–192. 6 indexed citations
18.
Yuasa, Satoshi, et al.. (1985). Effect of tritoqualine on liver regeneration after partial hepatectomy in rats.. Folia Pharmacologica Japonica. 85(5). 387–395. 1 indexed citations
19.
Yuasa, Satoshi, et al.. (1985). Therapeutic effect of TRQ on chronic liver injury model in rats induced by CCl4.. Folia Pharmacologica Japonica. 85(4). 249–257. 3 indexed citations
20.
Umezu, Kohei & Kenneth E. Moore. (1979). Effects of drugs on regional brain concentrations of dopamine and dihydroxyphenylacetic acid.. Journal of Pharmacology and Experimental Therapeutics. 208(1). 49–56. 84 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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